Scissor structure for shearing titanium alloy by warm header

Abstract

The utility model discloses a shear structure for a warm heading machine to shear titanium alloy, and belongs to the field of warm heading machines, the shear structure comprises a shear die, a shear, a handle, a driving device and a feeding device, the shear die is provided with a first through hole, the shear is of a long plate-shaped structure made of tungsten steel, the shear is provided with a second through hole, and in an initial state, the shear is close to a second end of the shear die; a first through hole is formed in the feeding device, a second through hole is formed in the feeding device, the first through hole is aligned to the second through hole, a third through hole is formed in the cutter handle, the scissors are embedded into the third through hole, and the driving device is connected with the cutter handle. The driving device drives the cutter handle to linearly move along the long edge of the scissors, the titanium alloy material strip is cut by the scissors, the first through hole always points to the scissors, and the titanium alloy material strip is not in contact with the cutter handle all the time, so that napping on the surface of the material is avoided, limitation of the cutter handle to the material of the cutter handle is relieved, and manufacturing cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of warm forging machines, and particularly relates to a scissors structure for shearing titanium alloy on a warm forging machine. Background Technique

[0002] Titanium alloy has excellent comprehensive properties such as low density, high specific strength, high temperature resistance, and corrosion resistance, and is widely used in the aerospace field.

[0003] At present, various types of titanium alloys are increasingly used in fasteners. Among them, α + β titanium alloy is used the most. Due to its poor plasticity, most of them cannot be cold forged and must be warm forged, that is, the titanium alloy material is heated to a certain temperature and then formed.

[0004] When titanium alloy is formed on a warm forging machine, the material needs to be sheared. After the titanium alloy material is heated, heat conduction will occur and conduct to the scissors and the tool holder. The existing scissors are usually made of circular tungsten steel. During the reciprocating shearing process, the material end face will slide across the contact between the circular tungsten steel and the tool holder. Since the tool holder is not made of tungsten steel, it will contact the material and cause the surface of the material to be scratched, affecting the appearance quality of the product. If the tool holder is made of tungsten steel, it will increase the weight of the tool holder and the manufacturing cost will increase significantly. Content of the Utility Model

[0005] To solve the problems raised in the above background technique, the utility model provides a scissors structure for shearing titanium alloy on a warm forging machine, so as to solve the problem that the non-tungsten steel tool holder will contact the material end face during the reciprocating shearing process, resulting in the surface of the material being scratched and affecting the appearance quality of the product. If the tool holder is made of tungsten steel, it will increase the weight of the tool holder and the manufacturing cost will increase significantly.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A scissors structure for shearing titanium alloy on a warm forging machine, comprising:

[0008] A cutting die; the cutting die includes a tungsten steel column and a sleeve, the sleeve is sleeved on the tungsten steel column, and the cutting die is provided with a first through hole that penetrates from the first end to the second end of the cutting die along the axis of the tungsten steel column;

[0009] Scissors; the scissors are made of tungsten steel in a long plate-like structure, and the scissors are provided with a second through hole. In the initial state, the scissors are close to the second end of the cutting die, and the first through hole is aligned with the second through hole;

[0010] A tool holder; the tool holder is provided with a third through hole, and the scissors are embedded in the third through hole;

[0011] A driving device; the driving device is connected to the tool holder, and the driving device is used to drive the tool holder to perform a reciprocating linear motion along the long side direction of the scissors. During the motion, the first through hole always points to the scissors;

[0012] Feeding device; the feeding device is used to intermittently transport the titanium alloy strip through the first through hole into the second through hole.

[0013] Preferably, the first through hole is divided into a first section near the first end of the shearing die and a second section near the second end of the shearing die. The first section of the first through hole is a funnel shape with a large diameter end and a small diameter end, where the large diameter end points to the first end of the shearing die, and the small diameter end is connected to the second section of the first through hole. The diameter of the second through hole is the same as that of the second section of the first through hole.

[0014] Preferably, the top surface of the scissors is flush with the top surface of the knife handle, and the bottom surface of the scissors is flush with the bottom surface of the knife handle.

[0015] Preferably, the second through hole is arranged at the first end of the scissors, and the driving device drives the knife handle to perform a reciprocating linear motion along the first end to the second end of the scissors.

[0016] Preferably, both the sleeve and the knife handle are made of die steel.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] In this application, the circular tungsten steel scissors in the prior art are designed as scissors with a long plate-shaped structure. When the feeding device transports the titanium alloy strip through the first through hole to the second through hole, when the titanium alloy strip in the second through hole reaches the preset length, the driving device drives the knife handle to perform a linear motion along the long side of the scissors, and the titanium alloy strip is cut by the scissors. Since the first through hole always points to the scissors during the movement, the end face of the titanium alloy strip in the first through hole always contacts the scissors and does not contact the knife handle. Therefore, the phenomenon of surface scratching can be reduced, and at the same time, the material limitation on the knife handle is removed, and the manufacturing cost can be reduced. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the scissors and the knife handle of this application;

[0020] Figure 2 is a schematic structural diagram of this application in the initial state;

[0021] Figure 3 is a schematic structural diagram of this application when the knife handle is in the moving state;

[0022] The labels in the figure are:

[0023] 1 - Knife handle; 2 - Scissors; 3 - Second through hole; 4 - Titanium alloy strip; 5 - Sleeve; 6 - First through hole; 7 - Tungsten steel column. Detailed Embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1:

[0026] As Figure 1 、 Figure 2 and Figure 3 shown, a scissors structure for shearing titanium alloy on a warm forging machine includes:

[0027] A cutting die; the cutting die includes a tungsten steel column 7 and a sleeve 5. The sleeve 5 is sleeved on the tungsten steel column 7. The cutting die is provided with a first through hole 6 that penetrates from the first end to the second end of the cutting die along the axis of the tungsten steel column 7. The center of the cutting die is made of tungsten steel, which can prevent the titanium alloy strip 4 in the first through hole 6 from rubbing against the hole wall to produce a scoring phenomenon. The sleeve 5 is used to adapt to the access and installation of other equipment;

[0028] Scissors 2; the scissors 2 is a long plate-shaped structure made of tungsten steel. The scissors 2 is provided with a second through hole 3. In the initial state, the scissors 2 is close to the second end of the cutting die, and the first through hole 6 is aligned with the second through hole 3;

[0029] A knife handle 1; the knife handle 1 is provided with a third through hole, and the scissors 2 is embedded in the third through hole;

[0030] A driving device; the driving device is connected to the knife handle 1. The driving device is used to drive the knife handle 1 to perform a reciprocating linear motion along the long side direction of the scissors 2. During the motion, the first through hole 6 always points to the scissors 2;

[0031] A feeding device; the feeding device is used to intermittently transport the titanium alloy strip 4 through the first through hole 6 into the second through hole 3.

[0032] In this embodiment, the present application designs the existing circular tungsten steel scissors into a long plate-shaped structure of the scissors 2. When the feeding device transports the titanium alloy strip 4 through the first through hole 6 to the second through hole 3, when the titanium alloy strip 4 in the second through hole 3 reaches the preset length, the driving device drives the knife handle 1 to perform a linear motion along the long side of the scissors 2, and the titanium alloy strip 4 is cut by the scissors 2. Since the first through hole 6 always points to the scissors 2 during the motion, the end face of the titanium alloy strip 4 in the first through hole 6 always contacts the scissors 2 and does not contact the knife handle 1. Therefore, the scoring phenomenon on the material surface can be reduced, and at the same time, the material limitation on the knife handle 1 is removed, and the manufacturing cost can be reduced.

[0033] Embodiment 2:

[0034] The difference between this embodiment and Embodiment 1 is that, as Figure 2 , Figure 3 shown, the first through hole 6 is divided into a first section near the first end of the cutting die and a second section near the second end of the cutting die. The first section of the first through hole 6 is in a funnel shape with a large-diameter end and a small-diameter end, where the large-diameter end points to the first end of the cutting die, and the small-diameter end communicates with the second section of the first through hole 6. The diameter of the second through hole 3 is the same as that of the second section of the first through hole 6.

[0035] In this embodiment, the first section of the first through hole 6 is set to be funnel-shaped, which can increase the error tolerance of the feeding device. When the feeding device conveys the titanium alloy strip 4 into the first through hole 6, if there is a deviation and it is not aligned with the axis position of the first through hole 6, the top end of the titanium alloy strip 4 will contact the first section of the funnel shape and continue to move forward, and finally it will be corrected and guided into the second section of the first through hole 6. Moreover, the extrusion contact between the titanium alloy strip 4 and the tungsten steel column 7 can reduce the scratching phenomenon.

[0036] Embodiment 3:

[0037] The difference between this embodiment and Embodiment 1 is that, as Figure 2 , Figure 3 shown, the top surface of the scissors 2 is flush with the top surface of the knife handle 1, and the bottom surface of the scissors 2 is flush with the bottom surface of the knife handle 1.

[0038] Embodiment 4:

[0039] The difference between this embodiment and Embodiment 1 is that, as Figure 2 , Figure 3 shown, the second through hole 3 is arranged at the first end of the scissors 2, and the driving device drives the knife handle 1 to make a reciprocating linear motion along the first end to the second end of the scissors 2.

[0040] In this embodiment, when the feeding device transports the titanium alloy strip 4 through the first through hole 6 to the second through hole 3, when the titanium alloy strip 4 in the second through hole 3 reaches the preset length, the driving device drives the knife handle 1 to move linearly from the first end of the scissors 2 to the second end, and the titanium alloy strip 4 is cut by the scissors 2. After taking out the cut material, the driving device drives the knife handle 1 to reset. After resetting, the first through hole 6 and the second through hole 3 are aligned again, and by repeating the above process, products without the scratching phenomenon can be manufactured.

[0041] Embodiment 5:

[0042] The difference between this embodiment and Embodiment 1 is that both the sleeve 5 and the knife handle 1 are made of die steel.

[0043] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A scissors structure for shearing titanium alloy with a warm heading machine, characterized in that: include: Cutting mold; The shearing die comprises a tungsten steel column (7) and a sleeve (5), wherein the sleeve (5) is sleeved on the tungsten steel column (7), and the shearing die is provided with a first through hole (6) which runs through the first end to the second end of the tungsten steel column (7) along the axis of the tungsten steel column (7); Scissors (2); the scissors (2) are a long plate-shaped structure made of tungsten steel, and a second through hole (3) is provided on the scissors (2). In an initial state, the scissors (2) are close to the second end of the shearing die, and the first through hole (6) is aligned with the second through hole (3); A knife handle (1); a third through hole is provided on the knife handle (1), and the scissors (2) are embedded in the third through hole; A driving device; the driving device is connected to the knife handle (1), and is used to drive the knife handle (1) to perform reciprocating linear motion along the long side direction of the scissors (2), and during the motion, the first through hole (6) always points to the scissors (2); feeding device; The feeding device is used to intermittently transport the titanium alloy strip (4) through the first through hole (6) to the second through hole (3).

2. The scissors structure for shearing titanium alloy with a warm heading machine according to claim 1, characterized in that: The first through hole (6) is divided into a first section close to the first end of the shearing die and a second section close to the second end of the shearing die. The first section of the first through hole (6) is funnel-shaped and has a large diameter end and a small diameter end, wherein the large diameter end points to the first end of the shearing die, and the small diameter end is connected to the second section of the first through hole (6). The diameter of the second through hole (3) is the same as the diameter of the second section of the first through hole (6).

3. The scissors structure for shearing titanium alloy with a warm heading machine according to claim 1, characterized in that: The top surface of the scissors (2) is flush with the top surface of the knife handle (1), and the bottom surface of the scissors (2) is flush with the bottom surface of the knife handle (1).

4. The scissors structure for shearing titanium alloy with a warm heading machine according to claim 1, characterized in that: The second through hole (3) is arranged on the first end of the scissors (2), and the driving device drives the handle (1) to perform reciprocating linear motion from the first end to the second end of the scissors (2).

5. The scissors structure for shearing titanium alloy with a warm heading machine according to claim 1, characterized in that: The sleeve (5) and the shank (1) are both made of die steel.

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